Blue Yonder EZ Harvard

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EZ Harvard
Blue Yonder EZ Harvard C-IKDM 06.JPG
The prototype EZ Harvard
Role Kit plane
National origin Canada
Manufacturer Blue Yonder Aviation
DesignerWayne Winters
First flight2002
Introduction2002
Primary userPrivate owners
Number built1
Developed from EZ King Cobra
The EZ Harvard prototype Blue Yonder EZ Harvard C-IKDM 01.JPG
The EZ Harvard prototype

The Blue Yonder EZ Harvard is a Canadian designed and built, single-engined, single-seat aircraft provided as a completed aircraft or in kit form by Blue Yonder Aviation. The aircraft is a 75% scale replica of the North American Harvard trainer of the Second World War. [1]

Contents

The aircraft can be constructed in Canada as a basic ultra-light, or amateur-built aircraft, but is not currently available as an advanced ultra-light. [2] [3]

Development

The EZ Harvard was designed by Wayne Winters of Indus, Alberta and based on the earlier EZ King Cobra. The project was started as a customer request for a scale Harvard replica and was later offered as a commercially available kit aircraft.

Winters created the EZ Harvard by using the cantilever wing design from the EZ King Cobra and added 4 feet (1.2 m) additional span, to increase the wingspan to 31 feet (9.4 m) and the wing area to 176 sq ft (16.4 m2). The fuselage was redesigned to give the round cross section, glazed canopy and distinctive fin shape of the original Harvard. The aircraft retained the Junkers ailerons of the original Merlin wing along with the Clark "Y" airfoil and construction featuring a leading edge "D" cell and foam ribs. The fuselage is constructed of welded 4130 steel tube. Even though the Harvard was originally a two-seat aircraft the EZ Harvard is a single seater with the prototype powered by a Rotax 582 two stroke engine of 64 hp (48 kW). [1] [4]

The prototype of the new design flew in 2002. In the basic ultralight version gross weight is limited to the category maximum of 1,200 lb (544 kg). [1]

The EZ Harvard has a large round cowling that can accommodate a variety of powerplants: [5]

Operational history

Despite being widely demonstrated no further orders have been received for the type and the prototype remains the sole flying example. [2]

Specifications (Rotax 582)

Data from Blue Yonder website [1]

General characteristics

Performance

See also

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References

  1. 1 2 3 4 Winters, Wayne (n.d.). "EZ HarvardFlyer". Archived from the original on 26 February 2009. Retrieved 2 March 2009.
  2. 1 2 Transport Canada (7 November 2016). "Canadian Civil Aircraft Register" . Retrieved 7 November 2016.
  3. ↑ Transport Canada (November 2008). "Listing of Models Eligible to be Registered as Advanced Ultra-Light Aeroplanes (AULA)" . Retrieved 2 March 2009.
  4. 1 2 Lednicer, David (October 2007). "The Incomplete Guide to Airfoil Usage". Archived from the original on 15 May 2008. Retrieved 28 February 2009.
  5. ↑ Winters, Wayne (n.d.). "EZ Harvard Price List". Archived from the original on 17 March 2009. Retrieved 2 March 2009.
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